Blockdos

BlockDoS is a DDoS protection and mitigation provider that shields websites, DNS, and email infrastructure against volumetric and application-layer attacks (including UDP, HTTP, SYN, and ICMP floods). Its approach relies on DNS redirection to route customer traffic through BlockDoS’s own scrubbing network, which scales up during an active attack, combined with 24/7 monitoring positioned as a hands-on, customer-managed service rather than a fully self-service cloud platform.

Founded in 2005 and headquartered in Mississauga, Ontario, BlockDoS has operated for two decades as a smaller, independent player in a DDoS mitigation category now dominated by hyperscale cloud providers (Cloudflare, Akamai, AWS Shield) that offer similar protection bundled with CDN and other services, often at no additional cost for basic tiers. BlockDoS markets itself primarily to small and mid-sized businesses and retailers with promotional pricing campaigns, suggesting a value/service-oriented positioning rather than competing on advanced attack sophistication or scale.

There is little public evidence of significant recent product innovation, independent funding, or third-party performance benchmarking for BlockDoS. It appears to be a durable, low-profile niche provider rather than a company driving change in the DDoS protection category, and buyers evaluating it should weigh its long operating history against the fact that DDoS mitigation capabilities from cloud-scale competitors have become a commodity, often bundled feature for many organizations.